SYSTEM AND METHOD FOR EARLY TERMINATION IN ITERATIVE NULL-SPACE DIRECTED SINGULAR VALUE DECOMPOSITION FOR MIMO

摘要

Embodiments are provided for early termination of an iterative process of determining channel directions and transmissions in multi-user multiple-input and multiple-output (MU-MIMO) communications systems. A multi-user channel matrix using a first iteration of a null-space singular value decomposition (SVD) based iterative zero-forcing (I-ZF) algorithm for multi-user MU-MIMO. The multi-user channel matrix is then updated using a next iteration of the algorithm and the multi-user channel matrix calculated in a previous iteration, until the diagonal elements of the multi-user channel matrix are greater than the off-diagonal elements by a predefined threshold. Thereafter, a plurality of transmission signals are calculated using the last updated multi-user channel matrix.